X = low-energy lamp
y = high-energy lamp
1) 4x + 5y
2) 120= 4x + 5y
Answer:
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Step-by-step explanation:
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Answer:
9
Step-by-step explanation:
RST = 90
90 - (22 + 41) = 27.
3x = 27
27/3 = 9
x = 9
Answer:
998655
Step-by-step explanation:
yes
